Справочник Пользователя для Honeywell Home Theater Server T755U

T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER

62-0255—09

2.2. Program Next Output

(Modulating

Output or Relay)

For the next output, select the desired MOD or Relay from

the Program menu (see Fig. 58 on page 27).

Go to “2.1.2. SETPOINT” on page 27 to continue

programming.

When you finish programming the outputs, continue with

“1.3. Exit Programming without Reset”.

1.3. Exit Programming without Reset

Press the

HOME button to leave programming mode and

return to the home screen.

This completes the programming procedure for controllers

that do not use Reset.

3. PROGRAMMING OUTPUTS

(MOD AND RELAY) WITH

RESET

The T775U can be programmed for Reset or No Reset for

each output. From the factory, the T775U is programmed

for No Reset. This section describes the steps necessary

to program the controller for Reset.

To use the Reset feature, the first output (MOD 1) must be

set to Reset=YES in Setup mode (see “3.1. Setting Up the

Controller for Reset”).

NOTE: Even if the MOD outputs are not used, both

MOD 1 and MOD 2 must be set to Reset in

order to configure Reset for the relay(s).

The reset curve established when programming the first

output (MOD 1) is then used for

all subsequent outputs

that are configured for Reset, and each of those outputs

will be offset from this curve.

For all outputs that will follow a reset curve, be sure to

configure for Reset=YES in the setup mode. Choose

Reset YES or NO for all other outputs you wish to reset,

then press the

HOME button to record your selection.

Fig. 65. Reset Setup.

NOTE: The first output, Mod 1, must be set for Reset

to enable the controller’s Reset function.

3.1. Setting Up the Controller for Reset

1. Press and hold the MENU button for five seconds to

enter Setup mode.

2. Then choose:

OUTPUTS u

MOD1 u

RESET u

then select YES-BOILER or YES-OTHER (Fig. 65).

You can now press the

HOME button to exit Setup mode

and continue with “Determining and Setting the Reset

Values”.

Determining and Setting the Reset

Values

NOTE: When using the Reset feature, Sensor A must

be sensing the controlled temperature (e.g.

Boiler), Sensor B must be sensing the reset-

ting temperature (e.g. outdoor temp).

To program an output for Reset, refer to the values as

shown in the examples below. Choose your own

appropriate values for Sensor A maximum and minimum

and Sensor B maximum and minimum.

Reset Example:

(see Fig. 66)

• Sensor A is the boiler sensor and Sensor B is the

outdoor sensor.

• Maximum boiler temperature desired is 210°F when

the outdoor temperature is 20°F.

• Minimum boiler temperature desired is 160°F when the

outdoor temperature is 70°F.

• With the above settings example, when the outdoor

temperature is 50°F, the effective setpoint is 180°F.

Setback (optional) Example:

(see Fig. 66)

• Setback of -10°F is used to drop the temperature at

night by 10°F.

• With the above settings example, when the outdoor

temperature is 50°F, the effective setback setpoint is

170°F (180°F setpoint minus the 10°F setback).

NOTE: A single reset curve is programmed for the

MOD 1 output and is used by all outputs

setup with RESET=YES.

SETUP
OUTPUTS

MOD 1

RESET

SETUP

OUTPUTS

MOD 1

RESET

USE RESET

FOR

MOD 1

YES-BOILER

YES-OTHER

M24568